■ Typical Problem
Cause
Treatment
* Fan motor is broken
Replace fan motor
* Blower fan is broken
Replace blower fan
* Ambient temparature is higher than 30℃
* Ventilation at mechanical part is not enough
See page 7
* Too many things are put inside
Make some room for cool air
* Gas is leaking from cooling system
Unable to fix.
* The special fuse inside DC cord is open
Replace the fuse
* DC power line in the vehicle is bad
Check the vehicle
■ Technical Data
※1 Ambient temp 25℃ ※2 Ambient temp 25℃ ～ -16℃
※3 Ambient temp 30℃ ～ 0℃ ※4 Tester uses the accuracy 10mΩ or less.
Checking Points
Normal data
See page
Dial position 5 ～ OFF
Approx. 0.6kΩ～11.5 kΩ
4. TROUBLE SHOOTING
Approx. 2KΩ ～ 10KΩ ※2
See page 15 【Check 2】
See page 15 【Check 3】
See page 16 【Check 5】
Cooling is weak
Symptoms
Checking items
DC12V/24V： Approx. AC15V～18V
※1
Does not get cold.
See page 11
Check the fuse by visual confirmation or check the
continuity with a tester.
That the fuse is not broken.
See page 15 【Check 1】
Between outgoing cords from power supply
(by ditaching from terminal of compressor)
Between two pin of the two poles coupler.
14
Lamp of temperature control
assembly is not lit.
Output voltage of power supply
Resistance of the compressor
Between incoming cords to compressor
(by detaching from terminal of compressor)
Approx. 1.23Ω ※1, ※4
Resistance of EVA.Thermistor
(Cabinet side)
See page 16 【Check 6】
Fuse
Control assy
Between two pin of the seven poles coupler.
